Finding the Fourth Proportional to 116,689,302.72, 161,053,518.24 and 76,927,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,689,302.72 : 161,053,518.24 = 76,927,066.56 : x
2. Step 2: Convert to fraction form
   116,689,302.72/161,053,518.24 = 76,927,066.56/x
3. Step 3: Cross multiply
   116,689,302.72x = 161,053,518.24 × 76,927,066.56
4. Step 4: Simplify right side
   116,689,302.72x = 12,389,374,717,370,656
5. Step 5: Solve for x
   x = 12,389,374,717,370,656/116,689,302.72
6. Step 6: Final answer
   x = 106,174,040.20