Finding the Fourth Proportional to 152,957.25, 229,412.18 and 78,132.69

Step by Step Solution

1. Step 1: Write the proportion equation
   152,957.25 : 229,412.18 = 78,132.69 : x
2. Step 2: Convert to fraction form
   152,957.25/229,412.18 = 78,132.69/x
3. Step 3: Cross multiply
   152,957.25x = 229,412.18 × 78,132.69
4. Step 4: Simplify right side
   152,957.25x = 17,924,590,351.50
5. Step 5: Solve for x
   x = 17,924,590,351.50/152,957.25
6. Step 6: Final answer
   x = 117,186.93