Finding the Fourth Proportional to 78,726.18, 108,641.82 and 42,916.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,726.18 : 108,641.82 = 42,916.08 : x
2. Step 2: Convert to fraction form
   78,726.18/108,641.82 = 42,916.08/x
3. Step 3: Cross multiply
   78,726.18x = 108,641.82 × 42,916.08
4. Step 4: Simplify right side
   78,726.18x = 4,662,481,038.47
5. Step 5: Solve for x
   x = 4,662,481,038.47/78,726.18
6. Step 6: Final answer
   x = 59,224.02