Finding the Fourth Proportional to 468,444,308.47, 646,460,215.52 and 256,749,445.34

Step by Step Solution

1. Step 1: Write the proportion equation
   468,444,308.47 : 646,460,215.52 = 256,749,445.34 : x
2. Step 2: Convert to fraction form
   468,444,308.47/646,460,215.52 = 256,749,445.34/x
3. Step 3: Cross multiply
   468,444,308.47x = 646,460,215.52 × 256,749,445.34
4. Step 4: Simplify right side
   468,444,308.47x = 165,978,301,767,051,488
5. Step 5: Solve for x
   x = 165,978,301,767,051,488/468,444,308.47
6. Step 6: Final answer
   x = 354,318,109.47