Finding the Fourth Proportional to 152,868.02, 210,963.92 and 88,335.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,868.02 : 210,963.92 = 88,335.10 : x
2. Step 2: Convert to fraction form
   152,868.02/210,963.92 = 88,335.10/x
3. Step 3: Cross multiply
   152,868.02x = 210,963.92 × 88,335.10
4. Step 4: Simplify right side
   152,868.02x = 18,635,518,969.59
5. Step 5: Solve for x
   x = 18,635,518,969.59/152,868.02
6. Step 6: Final answer
   x = 121,905.94