Finding the Fourth Proportional to 102,100.80, 152,874.72 and 52,749.12

Step by Step Solution

1. Step 1: Write the proportion equation
   102,100.80 : 152,874.72 = 52,749.12 : x
2. Step 2: Convert to fraction form
   102,100.80/152,874.72 = 52,749.12/x
3. Step 3: Cross multiply
   102,100.80x = 152,874.72 × 52,749.12
4. Step 4: Simplify right side
   102,100.80x = 8,064,006,950.25
5. Step 5: Solve for x
   x = 8,064,006,950.25/102,100.80
6. Step 6: Final answer
   x = 78,980.84