Finding the Fourth Proportional to 9,609,116.76, 13,260,580.59 and 5,258,203.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,609,116.76 : 13,260,580.59 = 5,258,203.59 : x
2. Step 2: Convert to fraction form
   9,609,116.76/13,260,580.59 = 5,258,203.59/x
3. Step 3: Cross multiply
   9,609,116.76x = 13,260,580.59 × 5,258,203.59
4. Step 4: Simplify right side
   9,609,116.76x = 69,726,832,463,822.31
5. Step 5: Solve for x
   x = 69,726,832,463,822.31/9,609,116.76
6. Step 6: Final answer
   x = 7,256,320.66