Finding the Fourth Proportional to 12,948,598.10, 19,422,897.15 and 11,455,606.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,598.10 : 19,422,897.15 = 11,455,606.10 : x
2. Step 2: Convert to fraction form
   12,948,598.10/19,422,897.15 = 11,455,606.10/x
3. Step 3: Cross multiply
   12,948,598.10x = 19,422,897.15 × 11,455,606.10
4. Step 4: Simplify right side
   12,948,598.10x = 222,501,059,071,212.59
5. Step 5: Solve for x
   x = 222,501,059,071,212.59/12,948,598.10
6. Step 6: Final answer
   x = 17,183,409.15