Finding the Fourth Proportional to 147,300.86, 220,971.69 and 52,503.12

Step by Step Solution

1. Step 1: Write the proportion equation
   147,300.86 : 220,971.69 = 52,503.12 : x
2. Step 2: Convert to fraction form
   147,300.86/220,971.69 = 52,503.12/x
3. Step 3: Cross multiply
   147,300.86x = 220,971.69 × 52,503.12
4. Step 4: Simplify right side
   147,300.86x = 11,601,703,156.67
5. Step 5: Solve for x
   x = 11,601,703,156.67/147,300.86
6. Step 6: Final answer
   x = 78,761.95