Finding the Fourth Proportional to 375,300.72, 562,892.76 and 138,589.56

Step by Step Solution

1. Step 1: Write the proportion equation
   375,300.72 : 562,892.76 = 138,589.56 : x
2. Step 2: Convert to fraction form
   375,300.72/562,892.76 = 138,589.56/x
3. Step 3: Cross multiply
   375,300.72x = 562,892.76 × 138,589.56
4. Step 4: Simplify right side
   375,300.72x = 78,011,059,935.59
5. Step 5: Solve for x
   x = 78,011,059,935.59/375,300.72
6. Step 6: Final answer
   x = 207,862.80