Finding the Fourth Proportional to 152,300.09, 228,659.78 and 77,470.88

Step by Step Solution

1. Step 1: Write the proportion equation
   152,300.09 : 228,659.78 = 77,470.88 : x
2. Step 2: Convert to fraction form
   152,300.09/228,659.78 = 77,470.88/x
3. Step 3: Cross multiply
   152,300.09x = 228,659.78 × 77,470.88
4. Step 4: Simplify right side
   152,300.09x = 17,714,473,427.58
5. Step 5: Solve for x
   x = 17,714,473,427.58/152,300.09
6. Step 6: Final answer
   x = 116,312.95