Finding the Fourth Proportional to 72,506, 100,058.55 and 42,312.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,506 : 100,058.55 = 42,312.17 : x
2. Step 2: Convert to fraction form
   72,506/100,058.55 = 42,312.17/x
3. Step 3: Cross multiply
   72,506x = 100,058.55 × 42,312.17
4. Step 4: Simplify right side
   72,506x = 4,233,694,377.55
5. Step 5: Solve for x
   x = 4,233,694,377.55/72,506
6. Step 6: Final answer
   x = 58,390.95