Finding the Fourth Proportional to 155,841.60, 215,061.45 and 88,773.60

Step by Step Solution

1. Step 1: Write the proportion equation
   155,841.60 : 215,061.45 = 88,773.60 : x
2. Step 2: Convert to fraction form
   155,841.60/215,061.45 = 88,773.60/x
3. Step 3: Cross multiply
   155,841.60x = 215,061.45 × 88,773.60
4. Step 4: Simplify right side
   155,841.60x = 19,091,779,137.72
5. Step 5: Solve for x
   x = 19,091,779,137.72/155,841.60
6. Step 6: Final answer
   x = 122,507.59