Finding the Fourth Proportional to 45,977,123.43, 68,974,185.27 and 13,186,319.49

Step by Step Solution

1. Step 1: Write the proportion equation
   45,977,123.43 : 68,974,185.27 = 13,186,319.49 : x
2. Step 2: Convert to fraction form
   45,977,123.43/68,974,185.27 = 13,186,319.49/x
3. Step 3: Cross multiply
   45,977,123.43x = 68,974,185.27 × 13,186,319.49
4. Step 4: Simplify right side
   45,977,123.43x = 909,515,643,532,671.88
5. Step 5: Solve for x
   x = 909,515,643,532,671.88/45,977,123.43
6. Step 6: Final answer
   x = 19,781,917.09