Finding the Fourth Proportional to 42,078.07, 63,056.96 and 30,897.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,078.07 : 63,056.96 = 30,897.03 : x
2. Step 2: Convert to fraction form
   42,078.07/63,056.96 = 30,897.03/x
3. Step 3: Cross multiply
   42,078.07x = 63,056.96 × 30,897.03
4. Step 4: Simplify right side
   42,078.07x = 1,948,272,784.83
5. Step 5: Solve for x
   x = 1,948,272,784.83/42,078.07
6. Step 6: Final answer
   x = 46,301.38