Finding the Fourth Proportional to 56,532.52, 77,916.90 and 42,360.76

Step by Step Solution

1. Step 1: Write the proportion equation
   56,532.52 : 77,916.90 = 42,360.76 : x
2. Step 2: Convert to fraction form
   56,532.52/77,916.90 = 42,360.76/x
3. Step 3: Cross multiply
   56,532.52x = 77,916.90 × 42,360.76
4. Step 4: Simplify right side
   56,532.52x = 3,300,619,100.84
5. Step 5: Solve for x
   x = 3,300,619,100.84/56,532.52
6. Step 6: Final answer
   x = 58,384.43