Finding the Fourth Proportional to 91,156.64, 136,641.52 and 34,981.60

Step by Step Solution

1. Step 1: Write the proportion equation
   91,156.64 : 136,641.52 = 34,981.60 : x
2. Step 2: Convert to fraction form
   91,156.64/136,641.52 = 34,981.60/x
3. Step 3: Cross multiply
   91,156.64x = 136,641.52 × 34,981.60
4. Step 4: Simplify right side
   91,156.64x = 4,779,938,996.03
5. Step 5: Solve for x
   x = 4,779,938,996.03/91,156.64
6. Step 6: Final answer
   x = 52,436.54