Finding the Fourth Proportional to 91,607.60, 137,105.22 and 52,154.12

Step by Step Solution

1. Step 1: Write the proportion equation
   91,607.60 : 137,105.22 = 52,154.12 : x
2. Step 2: Convert to fraction form
   91,607.60/137,105.22 = 52,154.12/x
3. Step 3: Cross multiply
   91,607.60x = 137,105.22 × 52,154.12
4. Step 4: Simplify right side
   91,607.60x = 7,150,602,096.51
5. Step 5: Solve for x
   x = 7,150,602,096.51/91,607.60
6. Step 6: Final answer
   x = 78,056.87