Finding the Fourth Proportional to 478,300.23, 717,551.55 and 158,434.00

Step by Step Solution

1. Step 1: Write the proportion equation
   478,300.23 : 717,551.55 = 158,434.00 : x
2. Step 2: Convert to fraction form
   478,300.23/717,551.55 = 158,434.00/x
3. Step 3: Cross multiply
   478,300.23x = 717,551.55 × 158,434.00
4. Step 4: Simplify right side
   478,300.23x = 113,684,560,478.82
5. Step 5: Solve for x
   x = 113,684,560,478.82/478,300.23
6. Step 6: Final answer
   x = 237,684.52