Finding the Fourth Proportional to 67,138,164.16, 100,706,908.60 and 58,012,494.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,138,164.16 : 100,706,908.60 = 58,012,494.78 : x
2. Step 2: Convert to fraction form
   67,138,164.16/100,706,908.60 = 58,012,494.78/x
3. Step 3: Cross multiply
   67,138,164.16x = 100,706,908.60 × 58,012,494.78
4. Step 4: Simplify right side
   67,138,164.16x = 5,842,259,009,467,437
5. Step 5: Solve for x
   x = 5,842,259,009,467,437/67,138,164.16
6. Step 6: Final answer
   x = 87,018,450.42