Finding the Fourth Proportional to 116,819,706.77, 161,260,833.47 and 72,788,460.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,819,706.77 : 161,260,833.47 = 72,788,460.48 : x
2. Step 2: Convert to fraction form
   116,819,706.77/161,260,833.47 = 72,788,460.48/x
3. Step 3: Cross multiply
   116,819,706.77x = 161,260,833.47 × 72,788,460.48
4. Step 4: Simplify right side
   116,819,706.77x = 11,737,927,804,002,956
5. Step 5: Solve for x
   x = 11,737,927,804,002,956/116,819,706.77
6. Step 6: Final answer
   x = 100,479,004.17