Finding the Fourth Proportional to 152,905.23, 229,256.55 and 72,955.53

Step by Step Solution

1. Step 1: Write the proportion equation
   152,905.23 : 229,256.55 = 72,955.53 : x
2. Step 2: Convert to fraction form
   152,905.23/229,256.55 = 72,955.53/x
3. Step 3: Cross multiply
   152,905.23x = 229,256.55 × 72,955.53
4. Step 4: Simplify right side
   152,905.23x = 16,725,533,111.22
5. Step 5: Solve for x
   x = 16,725,533,111.22/152,905.23
6. Step 6: Final answer
   x = 109,384.96