Finding the Fourth Proportional to 156,300.30, 234,294.93 and 89,659.98

Step by Step Solution

1. Step 1: Write the proportion equation
   156,300.30 : 234,294.93 = 89,659.98 : x
2. Step 2: Convert to fraction form
   156,300.30/234,294.93 = 89,659.98/x
3. Step 3: Cross multiply
   156,300.30x = 234,294.93 × 89,659.98
4. Step 4: Simplify right side
   156,300.30x = 21,006,878,737.90
5. Step 5: Solve for x
   x = 21,006,878,737.90/156,300.30
6. Step 6: Final answer
   x = 134,400.76