Finding the Fourth Proportional to 76,173,424.71, 105,151,508.18 and 51,427,132.89

Step by Step Solution

1. Step 1: Write the proportion equation
   76,173,424.71 : 105,151,508.18 = 51,427,132.89 : x
2. Step 2: Convert to fraction form
   76,173,424.71/105,151,508.18 = 51,427,132.89/x
3. Step 3: Cross multiply
   76,173,424.71x = 105,151,508.18 × 51,427,132.89
4. Step 4: Simplify right side
   76,173,424.71x = 5,407,640,584,499,646
5. Step 5: Solve for x
   x = 5,407,640,584,499,646/76,173,424.71
6. Step 6: Final answer
   x = 70,991,170.54