Finding the Fourth Proportional to 93,978.56, 129,697.90 and 53,151.30

Step by Step Solution

1. Step 1: Write the proportion equation
   93,978.56 : 129,697.90 = 53,151.30 : x
2. Step 2: Convert to fraction form
   93,978.56/129,697.90 = 53,151.30/x
3. Step 3: Cross multiply
   93,978.56x = 129,697.90 × 53,151.30
4. Step 4: Simplify right side
   93,978.56x = 6,893,611,992.27
5. Step 5: Solve for x
   x = 6,893,611,992.27/93,978.56
6. Step 6: Final answer
   x = 73,353.03