Finding the Fourth Proportional to 12,914,141.60, 17,820,842.81 and 8,019,258.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,914,141.60 : 17,820,842.81 = 8,019,258.59 : x
2. Step 2: Convert to fraction form
   12,914,141.60/17,820,842.81 = 8,019,258.59/x
3. Step 3: Cross multiply
   12,914,141.60x = 17,820,842.81 × 8,019,258.59
4. Step 4: Simplify right side
   12,914,141.60x = 142,909,946,789,588.06
5. Step 5: Solve for x
   x = 142,909,946,789,588.06/12,914,141.60
6. Step 6: Final answer
   x = 11,066,159.20