Finding the Fourth Proportional to 72,146,194.66, 99,559,081.32 and 39,105,734.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,146,194.66 : 99,559,081.32 = 39,105,734.40 : x
2. Step 2: Convert to fraction form
   72,146,194.66/99,559,081.32 = 39,105,734.40/x
3. Step 3: Cross multiply
   72,146,194.66x = 99,559,081.32 × 39,105,734.40
4. Step 4: Simplify right side
   72,146,194.66x = 3,893,330,991,061,274.50
5. Step 5: Solve for x
   x = 3,893,330,991,061,274.50/72,146,194.66
6. Step 6: Final answer
   x = 53,964,467.69