Finding the Fourth Proportional to 72,830.61, 109,256.67 and 37,312.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,830.61 : 109,256.67 = 37,312.02 : x
2. Step 2: Convert to fraction form
   72,830.61/109,256.67 = 37,312.02/x
3. Step 3: Cross multiply
   72,830.61x = 109,256.67 × 37,312.02
4. Step 4: Simplify right side
   72,830.61x = 4,076,587,056.17
5. Step 5: Solve for x
   x = 4,076,587,056.17/72,830.61
6. Step 6: Final answer
   x = 55,973.54